CN108321180A - Display base plate and preparation method thereof, display device - Google Patents
Display base plate and preparation method thereof, display device Download PDFInfo
- Publication number
- CN108321180A CN108321180A CN201810142746.4A CN201810142746A CN108321180A CN 108321180 A CN108321180 A CN 108321180A CN 201810142746 A CN201810142746 A CN 201810142746A CN 108321180 A CN108321180 A CN 108321180A
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- Prior art keywords
- base plate
- display base
- fluid sealant
- groove
- interlayer insulating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 239000012530 fluid Substances 0.000 claims abstract description 63
- 239000000565 sealant Substances 0.000 claims abstract description 63
- 239000000758 substrate Substances 0.000 claims abstract description 35
- 239000011229 interlayer Substances 0.000 claims abstract description 28
- 238000005538 encapsulation Methods 0.000 claims abstract description 22
- 239000010410 layer Substances 0.000 claims description 38
- 238000005401 electroluminescence Methods 0.000 claims description 16
- 239000003292 glue Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 14
- 230000004308 accommodation Effects 0.000 claims description 6
- 238000000059 patterning Methods 0.000 claims description 6
- 238000005245 sintering Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000010408 film Substances 0.000 description 19
- 239000004973 liquid crystal related substance Substances 0.000 description 7
- 238000007789 sealing Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000001723 curing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000004446 light reflex Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012536 packaging technology Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/842—Containers
- H10K50/8426—Peripheral sealing arrangements, e.g. adhesives, sealants
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/122—Pixel-defining structures or layers, e.g. banks
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/1201—Manufacture or treatment
Abstract
A kind of display base plate of present invention offer and preparation method thereof, display device, belong to display technology field.The display base plate of the present invention, is divided into viewing area and the encapsulation region around viewing area;The display base plate includes substrate, and interlayer insulating film on the substrate is arranged;The interlayer insulating film is arranged fluted in position corresponding with the encapsulation region;It is provided with fluid sealant in the groove;Wherein, the side wall of the groove enables to expose to light reflection thereon to the fluid sealant.At this point, when by laser irradiation fluid sealant, laser reflection can be exposed on fluid sealant by the side wall of groove, so that the side sintering of fluid sealant, avoids the occurrence of effective seal area, so that display base plate and cover board are perfectly sealed by fluid sealant.
Description
Technical field
The invention belongs to display technology fields, and in particular to a kind of display base plate and preparation method thereof, display device.
Background technology
Luminescent material and functional material in organic electroluminescence device (OLED) is sensitive to the gentle comparison of water, therefore, right
The seal request of oxygen and the barrier of water is required it is higher, to prevent the influence of steam and oxygen to OLED device, at present in
The OLED display device of small size mostly uses laser package (Laser sealing) technique and Frit materials (glass material) carry out
Encapsulation utilizes laser beam movement heating glass-encapsulated glue to melt, the glass-encapsulated glue of the fusing shape between upper and lower two glass substrate
It is connected at closed encapsulation, to provide hermetically sealing, however, utilizing laser beam movement heating glass-encapsulated in packaging technology
During glue melts, laser beam can not expose to the side of glass-encapsulated glue, and the side of glass-encapsulated glue is caused to present
Burr shape forms invalid encapsulation region, causes the reliability of packaging area poor, to influence the service life of device.
To sum up, providing a packaging effect, good oled panel is that there is an urgent need for technical problems to be solved.
Invention content
The present invention is directed at least solve one of the technical problems existing in the prior art, provide one kind avoid the occurrence of it is invalid close
Seal the display base plate in area and preparation method thereof, display device.
Technical solution is a kind of display base plate used by solving present invention problem, is divided into viewing area and surround
The encapsulation region of the viewing area;The display base plate includes substrate, and interlayer insulating film on the substrate is arranged;The interlayer
Insulating layer is arranged fluted in position corresponding with the encapsulation region;It is provided with fluid sealant in the groove;Wherein, described recessed
The side wall of slot enables to expose to light reflection thereon to the fluid sealant.
Preferably, the width of the groove floor is more than the surface that the fluid sealant is contacted with the interlayer insulating film
Width.
Preferably, the side wall of the groove and the angle of its bottom surface are obtuse angle.
Preferably, the interlayer insulating film includes pixel confining layer;Wherein, the pixel confining layer with the display
The corresponding position in area is provided with receiving portion;The luminescent material of organic electroluminescence device is provided in described accommodation section.
Preferably, the fluid sealant includes frit.
Preferably, the fluid sealant includes UV glue.
Technical solution is a kind of preparation method of display base plate, the display base used by solving present invention problem
Plate is divided into viewing area and the encapsulation region around viewing area;The method includes:In the step of forming interlayer insulating film in substrate;
The method further includes:
Groove is formed in interlayer insulating film position corresponding with the encapsulation region;
Fluid sealant is formed in the groove;Wherein,
The side wall of the groove enables to expose to light reflection thereon to the fluid sealant.
Preferably, the interlayer insulating film includes pixel confining layer;The method further includes:
Receiving portion is formed in pixel confining layer position corresponding with the viewing area;
The luminescent material of organic electroluminescence device is formed in described accommodation section.
Preferably, described accommodation section prepares to be formed using a patterning processes with the groove.
Preferably, the fluid sealant includes frit.
Preferably, the fluid sealant includes UV glue.
Technical solution is a kind of display device used by solving present invention problem comprising above-mentioned display base
Plate.
The present invention has the advantages that:
It is fluted due to being formed in the interlayer insulating film of the display base plate of the present invention, and fluid sealant setting is in a groove,
And when there is light to expose to the side wall in groove, light can expose on fluid sealant by the reflection of the side wall of groove,
Display base plate and cover board are sealed so as to seal by emitting laser, at this point, when by laser irradiation fluid sealant, it can
Can be exposed to laser reflection on fluid sealant by the side wall of groove, so that the side sintering of fluid sealant, avoids the occurrence of
Effective seal area, so that display base plate and cover board are perfectly sealed by fluid sealant.
Description of the drawings
Fig. 1 is the structural schematic diagram of the display base plate of the embodiment of the present invention 1;
Fig. 2 is the groove of the display base plate of the embodiment of the present invention 1 by the schematic diagram of light reflection to fluid sealant;
Fig. 3 is the flow chart of the preparation method of the display base plate of the first situation of the embodiment of the present invention 2;
Fig. 4 is the flow chart of the preparation method of the display base plate of the second situation of the embodiment of the present invention 2.
Wherein reference numeral is:10, substrate;20, cover board;1, interlayer insulating film;11, groove;2, fluid sealant;3, pixel is driven
Each layer structure of dynamic circuit;4, each layer structure of thin film transistor (TFT);Q1, viewing area;Q2, encapsulation region.
Specific implementation mode
To make those skilled in the art more fully understand technical scheme of the present invention, below in conjunction with the accompanying drawings and specific embodiment party
Present invention is further described in detail for formula.
Embodiment 1:
In conjunction with shown in Fig. 1 and 2, the present embodiment provides a kind of display base plates, are divided into viewing area Q1 and around viewing area
The encapsulation region Q2 of Q1;The display base plate includes substrate 10, and interlayer insulating film 1 on the substrate 10 is arranged;The interlayer insulating film 1 exists
Position setting corresponding with the encapsulation region Q2 fluted 11;Fluid sealant 2 is provided in groove 11;Wherein, the groove 11
The side wall that side wall enables to expose to light reflection to the fluid sealant 2 namely the groove 11 thereon is opposed substrate 10
It is inclined.
Due to forming fluted 11 in the interlayer insulating film 1 of the present embodiment display base plate, and fluid sealant 2 is arranged in groove
In 11, and when there is light to expose in the side wall of groove 11, light can expose to close by the reflection of the side wall of groove 11
In sealing 2, namely by emitting laser so that display base plate and cover board 20 are sealed by fluid sealant 2, at this point, passing through laser
When irradiating fluid sealant 2, laser reflection can be exposed on fluid sealant 2 by the side wall of groove 11, so that fluid sealant 2
Side sintering, avoid the occurrence of effective seal area, perfectly sealed so that display base plate and cover board 20 pass through fluid sealant 2.
Wherein, the width of 11 bottom surface of groove is more than the surface that is contacted with interlayer insulating film 1 of fluid sealant 2 in the present embodiment
Width.That is, the width of groove 11 is greater than the width of fluid sealant 2, in this way since, can will likely will expose in groove
11 side wall light as much as possible can expose on fluid sealant 2 by the reflection of the side wall of groove 11, so that fluid sealant 2
Side is preferably sintered.
Wherein, can make to expose to the side wall in groove 11 by 11 self structure of groove the present embodiment provides a kind of
Light reflexes on fluid sealant 2, i.e., the side wall of groove 11 and the angle of its bottom surface are obtuse angle, it is preferred that the range at the obtuse angle exists
115 ° to 165 °.It is of course also possible to be specifically arranged according to scheme.
Wherein, the display base plate in the present embodiment can be oled substrate, can also be array used in liquid crystal display panel
Substrate.The display base plate of the present embodiment is specifically described below in conjunction with both substrates.
The first situation, the display base plate in the present embodiment are oled substrate, wherein interlayer insulating film 1 is pixel restriction
Layer;It is provided with each layer structure 3 of pixel-driving circuit on the substrate 10, is being provided with above layer where pixel-driving circuit
The figure of the anode of organic electroluminescence devices, and the anode of organic electroluminescence device and pixel-driving circuit in driving tube
Drain electrode connection;Pixel confining layer is arranged on the anode of organic electroluminescence device, in the pixel confining layer and viewing area Q1
Corresponding position is provided with receiving portion, and exposes the anode of organic electroluminescence device in the receiving portion position;At this
Pixel confining layer position setting fluted 11 corresponding with encapsulation region Q2, is provided with fluid sealant 2, and the groove 11 in groove 11
Side wall enable to expose to light reflection thereon to fluid sealant 2, in this way since, when emitting laser, laser irradiation is to groove
11 side wall is by laser reflection to the side of fluid sealant 2, so that the side sintering of fluid sealant 2, avoids the occurrence of effective seal area, from
And display base plate and cover board 20 are perfectly sealed by fluid sealant 2.
Certainly, the luminous material of organic electroluminescence device is provided in the receiving portion of the pixel confining layer of the oled substrate
Material, in the cathode for being provided with organic electroluminescence device where luminescent material above layer.
Wherein, above-mentioned fluid sealant 2 is frit, it is of course also possible to use other materials is sealed.
The second situation, the display base plate in the present embodiment is array substrate used in liquid crystal display panel, and 4 be film crystal
Each layer structure of pipe.The fluid sealant 2 of the array substrate is specially UV glue, and interlayer insulating film 1 is the planarization layer in array substrate,
Groove 11 is located in the encapsulation region Q2 of planarization layer, and the side wall of groove 11 enables to expose to light reflection thereon to UV
Glue, so that when by illumination to UV adhesive curings, so that the comprehensive solidification of UV glue.
Embodiment 2:
The present embodiment provides a kind of preparation method of display base plate, this method can prepare the display base plate in embodiment 1.
The display base plate is divided into viewing area Q1 and the encapsulation region Q2 around viewing area Q1;This method includes:Forming layer on the substrate 10
Between insulating layer 1;Groove 11 is formed in the position corresponding with encapsulation region Q2 of interlayer insulating film 1;Fluid sealant 2 is formed in groove 11;
Wherein, the side wall of groove 11 enables to expose to light reflection thereon to fluid sealant 2.
Due to forming fluted 11 in the interlayer insulating film 1 formed in the preparation method in the present embodiment display base plate,
And fluid sealant 2 is formed in groove 11, and when there is light to expose in the side wall of groove 11, light passes through the side wall of groove 11
Reflection can expose on fluid sealant 2, namely by emit laser so that fluid sealant 2 carries out display base plate and cover board 20
Sealing can be exposed to laser reflection by the side wall of groove 11 close at this point, when by laser irradiation fluid sealant 2
In sealing 2, so that the side sintering of fluid sealant 2, avoids the occurrence of effective seal area, so that display base plate and cover board 20 pass through
Fluid sealant 2 perfectly seals.
Wherein, the display base plate in the present embodiment can be oled substrate, can also be array used in liquid crystal display panel
Substrate.The preparation method of the display base plate of the present embodiment is specifically described below in conjunction with the preparation method of both substrates.
The first situation, the display base plate in the present embodiment are oled substrate, wherein interlayer insulating film 1 is pixel restriction
Layer, as shown in figure 3, the preparation method specifically comprises the following steps:
Step 1: including each layer structure 3 of pixel-driving circuit by patterning processes formation on the substrate 10.With pixel
For the pixel-driving circuit that driving circuit is 2T1C namely pixel-driving circuit includes switching tube, driving tube, storage capacitance.
Step 2: where pixel-driving circuit layer top, by patterning processes formation include organic electroluminescence
The figure of the anode of part.Wherein, the drain electrode with the driving tube in pixel-driving circuit of the anode of organic electroluminescence device connects
It connects.
Step 3: where anode in organic electroluminescence device above layer, pixel confining layer is formed, and pass through composition work
Skill, it includes receiving portion figure to be formed in pixel confining layer position corresponding with viewing area Q1, and corresponding with encapsulation region Q2
It includes 11 figure of groove that position, which is formed,;Wherein, the anode of organic electroluminescence device is exposed in the receiving portion position.
Preferably, above-mentioned receiving portion and groove 11 are formed using a patterning processes, and so processing step is simple,
It is easily achieved.
Step 4: forming the luminescent material of organic electroluminescence device in the receiving portion of pixel confining layer.
Step 5: forming the cathode of organic electroluminescence device above layer where luminescent material in pixel confining layer.
Step 6: in the substrate 10 for completing above-mentioned steps, it is provided with fluid sealant 2 in the groove 11 of pixel confining layer,
The fluid sealant 2 is frit, and the side wall of the groove 11 enables to expose to light reflection thereon to frit, in this way with
Come, when emitting laser laser irradiation to the side wall of groove 11 by the side of laser reflection to frit so that the side of frit
Face is sintered, and effective seal area is avoided the occurrence of, so that display base plate and cover board 20 are perfectly sealed by frit.
So far the preparation of oled substrate is completed.
The second situation, the display base plate in the present embodiment are array substrate used in liquid crystal display panel, the array substrate
Fluid sealant 2 be specially UV glue, interlayer insulating film 1 be array substrate in planarization layer, as shown in figure 4, the preparation method have
Body includes the following steps:
Step 1: including each layer structure 4 of thin film transistor (TFT) by patterning processes formation on the substrate 10.
Step 2: planarization layer is formed in the substrate 10 for being formed with thin film transistor (TFT), and in planarization layer and encapsulation region
The corresponding positions Q2 form groove 11.
Step 3: UV glue is formed in groove 11, and the side wall of groove 11 enables to expose to light reflection thereon extremely
UV glue, so that when by illumination to UV adhesive curings, so that the comprehensive solidification of UV glue.
So far the preparation of array substrate used in liquid crystal display panel is completed.
Embodiment 2:
Present embodiments provide a kind of display device comprising the display base plate in embodiment 1.Therefore, the present embodiment
The sealing effect of display device is good.
Wherein, display device can be liquid crystal display device or el display device, such as liquid crystal display panel, electronics
Paper, oled panel, mobile phone, tablet computer, television set, display, laptop, Digital Frame, navigator etc. are any to be had
The product or component of display function.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, in the essence for not departing from the present invention
In the case of refreshing and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (12)
1. a kind of display base plate is divided into viewing area and the encapsulation region around the viewing area;The display base plate includes base
Interlayer insulating film on the substrate is arranged in bottom;It is characterized in that, the interlayer insulating film is corresponding with the encapsulation region
Position setting is fluted;It is provided with fluid sealant in the groove;Wherein, the side wall of the groove enables to expose to thereon
Light reflection to the fluid sealant.
2. display base plate according to claim 1, which is characterized in that the width of the groove floor is more than the fluid sealant
The width on the surface contacted with the interlayer insulating film.
3. display base plate according to claim 1, which is characterized in that the side wall of the groove is blunt with the angle of its bottom surface
Angle.
4. display base plate according to claim 1, which is characterized in that the interlayer insulating film includes pixel confining layer;Its
In, the pixel confining layer is provided with receiving portion in position corresponding with the viewing area;It is provided in described accommodation section organic
The luminescent material of electroluminescent device.
5. display base plate according to claim 1, which is characterized in that the fluid sealant includes frit.
6. display base plate according to claim 1, which is characterized in that the fluid sealant includes UV glue.
7. a kind of preparation method of display base plate, the display base plate are divided into viewing area and the encapsulation region around viewing area;Institute
The method of stating includes:In the step of forming interlayer insulating film in substrate;It is characterized in that, the method further includes:
Groove is formed in interlayer insulating film position corresponding with the encapsulation region;
Fluid sealant is formed in the groove;Wherein,
The side wall of the groove enables to expose to light reflection thereon to the fluid sealant.
8. the preparation method of display base plate according to claim 7, which is characterized in that the interlayer insulating film includes pixel
Confining layers;The method further includes:
Receiving portion is formed in pixel confining layer position corresponding with the viewing area;
The luminescent material of organic electroluminescence device is formed in described accommodation section.
9. the preparation method of display base plate according to claim 8, which is characterized in that adopted with the groove described accommodation section
It is prepared to be formed with a patterning processes.
10. the preparation method of display base plate according to claim 7, which is characterized in that the fluid sealant includes frit.
11. the preparation method of display base plate according to claim 7, which is characterized in that the fluid sealant includes UV glue.
12. a kind of display device, which is characterized in that including the display base plate described in any one of claim 1-6.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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CN201810142746.4A CN108321180A (en) | 2018-02-11 | 2018-02-11 | Display base plate and preparation method thereof, display device |
PCT/CN2018/122065 WO2019153903A1 (en) | 2018-02-11 | 2018-12-19 | Display substrate and preparation method therefor, and display apparatus |
US16/483,357 US11075356B2 (en) | 2018-02-11 | 2018-12-19 | Display substrate, manufacturing method thereof, display device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810142746.4A CN108321180A (en) | 2018-02-11 | 2018-02-11 | Display base plate and preparation method thereof, display device |
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CN108321180A true CN108321180A (en) | 2018-07-24 |
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CN201810142746.4A Pending CN108321180A (en) | 2018-02-11 | 2018-02-11 | Display base plate and preparation method thereof, display device |
Country Status (3)
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US (1) | US11075356B2 (en) |
CN (1) | CN108321180A (en) |
WO (1) | WO2019153903A1 (en) |
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CN109546003A (en) * | 2018-11-27 | 2019-03-29 | 上海天马有机发光显示技术有限公司 | Display panel and display device |
WO2019153903A1 (en) * | 2018-02-11 | 2019-08-15 | 京东方科技集团股份有限公司 | Display substrate and preparation method therefor, and display apparatus |
CN114822229A (en) * | 2021-01-28 | 2022-07-29 | 鄂尔多斯市源盛光电有限责任公司 | Display panel |
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CN112133734B (en) * | 2020-09-29 | 2022-08-30 | 湖北长江新型显示产业创新中心有限公司 | Display panel and display device |
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